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Old May 13th, 2019, 09:42
Porch951 Porch951 is offline
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Join Date: Apr 2008
Location: Albuquerque, NM
Posts: 461
Driveline Vibrations - axle wrap?

I've got a 1993 XJ, lifted 4.5" with IRO springs and shackles. My drivetrain is a SYE with a CV driveshaft. I've been having a lot of drivetrain vibrations and have managed to get them down to a pretty reasonable level using axle shims (currently at an 8* shim).

However the vibes are still persisting and I think that my overall problem is axle wrap. Right now my driveshaft is about 1* down from the pinion angle, but I can feel the axle shifting in both directions as I accelerate and brake.

Is it common to have to put in a tractor link or similar to prevent wrap? I also noticed that my IRO springs are sagged, so I am wondering if that's contributing to my issues. This has been a long-term problem.
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